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Effect of Mineral Grain and Hydrate Layered Distribution Characteristics on the Mechanical Properties of Hydrate-Bearing Sediments

文献类型：期刊论文

作者Han, Zhenhua1,2; Zhang, Luqing1,2; Zhou, Jian4; Pan, Zhejun3; Wang, Song1,2; Li, Ruirui1,2
刊名ENERGIES
出版日期2023-11-01
卷号16期号:21页码:19
关键词layered hydrate-bearing sediments anisotropy triaxial compression simulation mechanical properties
DOI10.3390/en16217366
英文摘要The mechanical characteristics of gas hydrate-bearing sediments (HBS) are important for evaluating reservoir stability. The interbedded formation of HBS is common in target mining reservoirs. Existing studies on the triaxial mechanical properties of HBS are primarily based on homogeneous and isotropic samples. Therefore, the stress-strain law of the target mining reservoirs cannot be predicted accurately. In this study, a series of sediment models with interlayers of coarse and fine mineral grains were established based on the PFC3D code, and the influence of the layered distribution characteristics of sediment particles and hydrates on the macroscopic mechanical behaviour of the reservoir was comprehensively analysed. The triaxial compression simulation results indicate that the peak strength, deformation modulus, and cohesion of the layered HBS are significantly lower than those of the homogeneous model. The deformation modulus of the reservoir is mainly affected by the fine-grained layer without hydrates. When the coarse and fine grains correspond to different mineral components, the two minerals are heterogeneous in terms of their micromechanical parameters, which can further reduce the macroscopic mechanical parameters of the HBS. In addition, the layered distribution of hydrate results in significant anisotropy of the reservoir. This study constitutes a reference regarding the control mechanism of gas hydrate reservoir strength.
WOS关键词NATURAL-GAS HYDRATE ; METHANE-HYDRATE ; SHENHU AREA ; BEHAVIOR ; MODEL ; SAND
资助项目National Natural Science Foundation of China[42107190] ; National Natural Science Foundation of China[41972287] ; National Natural Science Foundation of China[42277144]
WOS研究方向Energy & Fuels
语种英语
出版者MDPI
WOS记录号WOS:001100542500001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/110648]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Zhang, Luqing
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Northeast Petr Univ, Key Lab Continental Shale Hydrocarbon Accumulat &, Minist Educ, Daqing 163318, Peoples R China
4.Beijing Univ Technol, Key Lab Urban Secur, Disaster Engn Minist Educ, Beijing 100021, Peoples R China
推荐引用方式
GB/T 7714		 Han, Zhenhua,Zhang, Luqing,Zhou, Jian,et al. Effect of Mineral Grain and Hydrate Layered Distribution Characteristics on the Mechanical Properties of Hydrate-Bearing Sediments[J]. ENERGIES,2023,16(21):19.
APA Han, Zhenhua,Zhang, Luqing,Zhou, Jian,Pan, Zhejun,Wang, Song,&Li, Ruirui.(2023).Effect of Mineral Grain and Hydrate Layered Distribution Characteristics on the Mechanical Properties of Hydrate-Bearing Sediments.ENERGIES,16(21),19.
MLA Han, Zhenhua,et al."Effect of Mineral Grain and Hydrate Layered Distribution Characteristics on the Mechanical Properties of Hydrate-Bearing Sediments".ENERGIES 16.21(2023):19.

入库方式： OAI收割

来源：地质与地球物理研究所

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